Remove memcache maxbytes metric
Remove mysql sent/received bytes
Remove mysql max connections
Remov mysql processlist sending data
Merge pull request #36 from njam/issue-36

Remove unimportant metrics
Merge branch 'master' of github.com:cargomedia/bipbip into issue-37

Conflicts:
	lib/bipbip/plugin/memcached.rb
	lib/bipbip/plugin/mysql.rb